PT5047M [TI]
0.9A SWITCHING REGULATOR, 950kHz SWITCHING FREQ-MAX, PSIP3, SIP-3;型号: | PT5047M |
厂家: | TEXAS INSTRUMENTS |
描述: | 0.9A SWITCHING REGULATOR, 950kHz SWITCHING FREQ-MAX, PSIP3, SIP-3 开关 |
文件: | 总3页 (文件大小:111K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PT5040 Series
1-A Positive Step-up
Integrated Switching Regulator
SLTS026B
(Revised 12/19/2001)
Features
• Wide Input Voltage Range
• 85% Efficiency
• Internal Over-Temperature
Protection
• Laser-trimmed Output Voltage
• Soft Start
Description
The PT5040 is a series of 3-pin
boost-voltage Integrated Switching
Regulators (ISRs). These ISRs are
designed for use with +5V bus systems
that require an additional regulated
+8V to +20V with up to 1A of output
current. These ISRs are packaged in
the 3-pin, single in-line pin (SIP)
package configuration.
• 5-Pin Mount Option
(Suffixes L & M)
Pin-Out Information Ordering Information PT Series Suffix
(PT1234x)
PT 5041o = +12 Volts
PT 5042o = +15 Volts
PT 5044o = +8 Volts
PT 5045o = +9 Volts
PT 5046o = +10 Volts
PT 5047o = +18 Volts
PT 5048o = +12.6 Volts
PT 5049o = +20 Volts
Pin
1
Function
Vin
Case/Pin
O rder
Package
Configuration
Suffix
Code
*
Standard Application
Vertical
Horizontal
SMD
Horizontal, 2-pin Tab
SMD, 2-Pin Tab
N
A
C
M
L
(EAD)
2
GND
Vout
(EAA)
(EAC)
3
+Vin
+Vout
1
3
PT5040
2
(EAM)
(EAL)
+
C3
100µF
C1
C2
* Previously known as package styles 100/110.
COM
COM
(Reference the applicable package code drawing
for the dimensions and PC board layout)
C1 = Optional ceramic (1-5µF)
C2 = Optional ceramic (1-5µF)
C3 = Required Electrolytic (100µF)
NOTE: Boost Topology ISRs are not Short-Circuit Protected.
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Io =Iomax, C3 =100µF)
PT5040 SERIES
Characteristics
Symbol
Conditions
Min
Typ
Max
Units
(1)
(1)
Output Current
Io
Over Vin range
PT5049
PT5047
0.1
0.1
—
0.5
0.6
1.0
0.75
1.5
1.2
—
—
—
—
—
PT5041/48
PT5042
0.1 (1)
A
(1)
0.1
(1)
(1)
PT5044
0.1
PT5045/46
0.1
–
14
Input Voltage Range
Vin
Over Io range
Over Vin Range
4.75
4.75
—
—
(Vo 1)
V
PT5047/5049
Output Voltage Tolerance
∆Vo
(3)
Ta= -20°C to SOA derating limit
Over Vin range
—
—
—
—
—
1.5
3.0
1.0
1.0
—
%Vo
%Vo
%Vo
%
Line Regulation
Load Regulation
Efficiency
Regline
Regload
η
0.5
0.5
Iomin ≤ Io ≤ Iomax
Io=0.5A
85
Vo Ripple (pk-pk)
Transient Response
Vr
20MHz bandwidth
2
5
%Vo
ttr
25% load change
—
—
500
3.0
—
µSec
%Vo
Vos
Vo over/undershoot
5.0
(2)
(3)
Current Limit
Inrush Current
Ilim
—
150
—
%Iomax
Iir
On start up
—
5.5
—
A
tir
—
—
1
mSec
Switching Frequency
ƒs
Over Vin and Io ranges
Vo<15V
Vo>15V
500
650
650
800
800
950
kHz
Operating Temperature Range
Thermal Resistance
Ta
—
-20
—
—
40
+85 (4)
°C
θja
Free Air Convection
(40-60LFM)
—
°C/W
Storage Temperature
Mechanical Shock
Ts
-40
—
+125
°C
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
—
500
—
5
G’s
Mechanical Vibration
Suffixes N, A, & C
Suffixes L & M
—
—
—
—
G’s
(5)
Per Mil-STD-883D, 20-2000 Hz
20
Weight
Suffixes N, A, & C
Suffixes L & M
—
—
4.5
6.5
—
—
grams
Notes: (1) The ISR will operate at no load with reduced specifications.
(2) Boost topology ISRs are not short circuit protected.
(3) The inrush current stated is above the normal input current for the associated output load.
(4) See Safe Operating Area curves or consult the factory for the appropriate derating
(5) The tab pins on the 5-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing.
For technical support and more information, see inside back cover or visit www.ti.com
Typical Characteristics
PT5040 Series
1-A Positive Step-up
Integrated Switching Regulator
PT5041, +12.0 VDC
(See Note A)
PT5042, +15.0 VDC
(See Note A)
Efficiency vs Output Current
Efficiency vs Output Current
100
100
90
80
70
60
50
40
9 0
8 0
7 0
6 0
5 0
4 0
V in
11.0V
Vin
14.0V
12.0V
10.0V
8.0V
8.0V
6.0V
5.0V
6.0V
5.0V
0
0.1 5
0.3
0.4 5
0.6
0.7 5
0
0 .2
0 .4
0 .6
0 .8
1
Iout-(Amps)
Iout-(Amps)
Ripple Voltage vs Output Current
Ripple Voltage vs Output Current
250
200
150
100
50
250
200
150
100
50
Vin
V in
5.0V
6.0V
8.0V
11.0V
5.0V
6.0V
8.0V
10.0V
12.0V
14.0V
0
0
0
0.2
0.4
0.6
0.8
1
0
0.15
0.3
0.45
0.6
0.75
Iout-(Amps)
Iout-(Amps)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
2.5
2
3
2.5
2
Vin
Vin
5.0V
6.0V
8.0V
10.0V
12.0V
14.0V
1.5
1
5.0V
6.0V
8.0V
11.0V
1.5
1
0.5
0
0.5
0
0
0.2
0.4
0.6
0.8
1
0
0.15
0.3
0.45
0.6
0.75
Iout-(Amps)
Iout-(Amps)
Safe Operating Area (VIN=5V) (See Note B)
Safe Operating Area (VIN=5V) (See Note B)
90
90
80
70
60
50
40
30
20
80
70
60
50
40
30
20
Airflow
0 LFM
Airflow
0
LFM
60 LFM
60 LFM
90 LFM
90 LFM
0
0.2
0.4
0.6
0.8
1
0.00
0.25
0.50
0.75
Maximum Output Current - (Amps)
Maximum Output Current - (Amps)
Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
Note B: Thermal derating graphs are developed in free-air convection cooling, which corresponds to approximately 40–60LFM of airflow.
For technical support and more information, see inside back cover or visit www.ti.com
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